Abstract : A compact complimentary split ring resonator (CSRR) fused with slotted microstrip patch antenna with inset feeding for better transmission efficiency .We experimentally confirmed that composite metamaterial can improve the performance of the microstrip patch antenna at the frequencies where electromagnetic band gap transmission takes place.The use of metamaterials in antenna design not only reduces the scale of the antenna but can even improve other antenna parameters like enhancing bandwidth, increasing gain, or generating multiband frequencies of antennas operations. To improve the radiation properties of the antenna by using metamaterials surface, antennas are often placed above the reflector so as to radiate in a very specific direction only, while reducing the back-radiation .The distance between the antenna and also the metal surface should be chosen minimum ?/4, where the metamaterial acts as a reflective plane to reinforce the graphical record and radiation efficiency.
